<template>
    <h1 style="background-color: rgb(255,0,0);">西游记</h1>
    <h1 style="background-color: rgb(0,0,255);">西游记</h1>
    <h1 style="background-color: rgba(0,0,255,0.9);">西游记-透明</h1>
    <h1 style="background-color: #ff0000;">西游记-hex</h1>
    <h1 style="background-color: #0f0;">西游记-hex</h1>
</template>

<script setup>
let arr = [11,44,'jj'];
console.log(0 in arr);
console.log(arr.includes('jj'));

let cat = {
    name:'abc'
}
console.log('name' in cat);
console.log('name1' in cat);
console.log('====');
let s1 = '1,3,77,99';
let arr2 = s1.split(',');
console.log('arr2',arr2);
console.log('<<<<<<<<<');
var arrx = [1,66,'mm'];
console.log(arrx.join("_"));
</script>

<style lang="scss" scoped>

</style>